——phpͼÏñ´¦ÀíÀà

<?
* +-------------------------------------------------------------+
* | Copyright (c) 2008-2009 Diqiye.Com All rights reserved.
* +-------------------------------------------------------------+
* | Info : ͼÏñ´¦ÀíÀà
* +-------------------------------------------------------------+
*/
class image {
// µ±Ç°Í¼Æ¬
protected $img;
// ͼÏñtypes ¶ÔÓ¦±í
protected $types = array(
1 => 'gif',
2 => 'jpg',
3 => 'png',
6 => 'bmp'
);

// image
public function __construct($img=''){
!$img && $this->param($img);
}

// Info
public function param($img){
$this->img = $img;
return $this;
}

// imageInfo
public function getImageInfo($img){
$info = @getimagesize($img);
if(isset($this->types[$info[2]])){
$info['ext'] = $info['type'] = $this->types[$info[2]];
} else{
$info['ext'] = $info['type'] = 'jpg';
}
$info['type'] == 'jpg' && $info['type'] = 'jpeg';
$info['size'] = @filesize($img);
return $info;
}

// thumb(ÐÂͼµØÖ·, ¿í, ¸ß, ²Ã¼ô, ÔÊÐí·Å´ó)
public function thumb($filename,$new_w=160,$new_h=120,$cut=0,$big=0){
// »ñȡԭͼÐÅÏ¢
$info = $this->getImageInfo($this->img);
if(!empty($info[0])) {
$old_w = $info[0];
$old_h = $info[1];
$type = $info['type'];
$ext = $info['ext'];
unset($info);
// Èç¹ûԭͼ±ÈËõÂÔͼС ²¢ÇÒ²»ÔÊÐí·Å´ó
if($old_w < $new_h &a